package com.zhang.作业Test;

import com.zhang.作业.Rectangle;

public class RectangleTest {
    public static void main(String[] args) {
        Rectangle r=new Rectangle();
        r.setChang(4);
        r.setKuan(5);
        System.out.println(r.getArea());
        System.out.println(r.getPerimeter());
        r.getInfo();
    }
}
